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[bug #17133] design bug: ``.. resolution in translators''

From: Thomas Schwinge
Subject: [bug #17133] design bug: ``.. resolution in translators''
Date: Mon, 17 Jul 2006 11:46:00 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; de; rv: Gecko/20060608 Ubuntu/dapper-security Firefox/


                 Summary: design bug: ``.. resolution in translators''
                 Project: The GNU Hurd
            Submitted by: tschwinge
            Submitted on: Monday 07/17/06 at 11:46
                Category: Hurd Interfaces
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Reproducibility: None
              Size (loc): None
         Planned Release: None
                  Effort: 0.00



12:48 <neal> I have a nice new attack.
12:49 <neal> chroot /chroot
12:49 <neal> set an active translator on foo
12:49 <neal> cause a program which is not in the chroot to use foo
12:50 <neal> with a path resembling: "/chroot/foo/../../.."
12:50 <neal> if the program uses open, it will open "/chroot"
12:50 <neal> and *NOT* /
12:50 <neal> the reason?
12:51 <neal> when the active translator on /chroot/foo returns the retry
capability on /chroot/foo, the capability is rooted at /chroot
12:52 <neal> transitively due to the file_reparent that chroot does
12:52 <neal> that's a design bug
12:54 <neal> abeaumont: I mean, it's not a bug which can be fixed
12:54 <neal> abeaumont: I means getting rid of .. resolution in translators


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